./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-lit/sssc12.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/config/GemCutterReach.xml -i ../../sv-benchmarks/c/pthread-lit/sssc12.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3f447624cefe078f3d1dfeed3af04dfcf2078828fba23b82e0579b17d6eb7f02 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 14:21:23,850 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 14:21:23,853 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 14:21:23,908 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 14:21:23,909 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 14:21:23,913 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 14:21:23,915 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 14:21:23,920 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 14:21:23,922 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 14:21:23,928 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 14:21:23,929 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 14:21:23,931 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 14:21:23,932 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 14:21:23,935 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 14:21:23,937 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 14:21:23,942 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 14:21:23,944 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 14:21:23,945 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 14:21:23,948 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 14:21:23,955 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 14:21:23,957 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 14:21:23,959 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 14:21:23,962 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 14:21:23,964 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 14:21:23,973 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 14:21:23,974 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 14:21:23,974 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 14:21:23,976 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 14:21:23,977 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 14:21:23,978 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 14:21:23,979 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 14:21:23,980 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 14:21:23,981 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 14:21:23,982 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 14:21:23,984 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 14:21:23,984 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 14:21:23,985 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 14:21:23,985 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 14:21:23,985 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 14:21:23,987 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 14:21:23,987 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 14:21:23,988 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/config/svcomp-Reach-32bit-GemCutter_Default.epf [2021-11-23 14:21:24,033 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 14:21:24,034 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 14:21:24,035 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 14:21:24,035 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 14:21:24,036 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 14:21:24,036 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 14:21:24,037 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 14:21:24,037 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 14:21:24,038 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 14:21:24,038 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 14:21:24,039 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 14:21:24,039 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 14:21:24,040 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 14:21:24,040 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 14:21:24,040 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 14:21:24,040 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 14:21:24,040 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 14:21:24,041 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 14:21:24,041 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 14:21:24,041 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 14:21:24,041 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 14:21:24,042 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 14:21:24,042 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 14:21:24,042 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-11-23 14:21:24,042 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 14:21:24,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 14:21:24,043 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 14:21:24,043 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 14:21:24,043 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 14:21:24,045 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 14:21:24,045 INFO L138 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2021-11-23 14:21:24,046 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 14:21:24,046 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 14:21:24,046 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-11-23 14:21:24,046 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 14:21:24,047 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-11-23 14:21:24,047 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-11-23 14:21:24,047 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3f447624cefe078f3d1dfeed3af04dfcf2078828fba23b82e0579b17d6eb7f02 [2021-11-23 14:21:24,359 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 14:21:24,383 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 14:21:24,387 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 14:21:24,388 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 14:21:24,389 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 14:21:24,391 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/../../sv-benchmarks/c/pthread-lit/sssc12.i [2021-11-23 14:21:24,461 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/data/1a395781c/dcafde4a0dce4e6abb5ea65ae2c8891c/FLAGf6ba513e6 [2021-11-23 14:21:25,015 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 14:21:25,015 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/sv-benchmarks/c/pthread-lit/sssc12.i [2021-11-23 14:21:25,049 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/data/1a395781c/dcafde4a0dce4e6abb5ea65ae2c8891c/FLAGf6ba513e6 [2021-11-23 14:21:25,310 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/data/1a395781c/dcafde4a0dce4e6abb5ea65ae2c8891c [2021-11-23 14:21:25,313 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 14:21:25,315 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 14:21:25,319 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 14:21:25,319 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 14:21:25,323 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 14:21:25,324 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:21:25" (1/1) ... [2021-11-23 14:21:25,326 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f1fbe57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:25, skipping insertion in model container [2021-11-23 14:21:25,326 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:21:25" (1/1) ... [2021-11-23 14:21:25,333 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 14:21:25,403 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 14:21:26,032 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/sv-benchmarks/c/pthread-lit/sssc12.i[46865,46878] [2021-11-23 14:21:26,059 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 14:21:26,068 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 14:21:26,120 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/sv-benchmarks/c/pthread-lit/sssc12.i[46865,46878] [2021-11-23 14:21:26,144 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 14:21:26,211 INFO L208 MainTranslator]: Completed translation [2021-11-23 14:21:26,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:26 WrapperNode [2021-11-23 14:21:26,212 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 14:21:26,214 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 14:21:26,214 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 14:21:26,214 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 14:21:26,222 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:26" (1/1) ... [2021-11-23 14:21:26,240 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:26" (1/1) ... [2021-11-23 14:21:26,265 INFO L137 Inliner]: procedures = 275, calls = 23, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 82 [2021-11-23 14:21:26,267 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 14:21:26,269 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 14:21:26,270 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 14:21:26,270 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 14:21:26,279 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:26" (1/1) ... [2021-11-23 14:21:26,280 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:26" (1/1) ... [2021-11-23 14:21:26,294 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:26" (1/1) ... [2021-11-23 14:21:26,306 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:26" (1/1) ... [2021-11-23 14:21:26,313 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:26" (1/1) ... [2021-11-23 14:21:26,328 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:26" (1/1) ... [2021-11-23 14:21:26,330 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:26" (1/1) ... [2021-11-23 14:21:26,333 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 14:21:26,334 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 14:21:26,335 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 14:21:26,335 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 14:21:26,336 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:26" (1/1) ... [2021-11-23 14:21:26,344 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 14:21:26,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 [2021-11-23 14:21:26,369 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 14:21:26,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 14:21:26,405 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-23 14:21:26,406 INFO L130 BoogieDeclarations]: Found specification of procedure thr [2021-11-23 14:21:26,406 INFO L138 BoogieDeclarations]: Found implementation of procedure thr [2021-11-23 14:21:26,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 14:21:26,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 14:21:26,406 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-23 14:21:26,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 14:21:26,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 14:21:26,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 14:21:26,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 14:21:26,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 14:21:26,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 14:21:26,409 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-23 14:21:26,553 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 14:21:26,562 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 14:21:26,776 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 14:21:26,804 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 14:21:26,804 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-23 14:21:26,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:21:26 BoogieIcfgContainer [2021-11-23 14:21:26,810 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 14:21:26,811 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 14:21:26,811 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 14:21:26,815 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 14:21:26,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:21:25" (1/3) ... [2021-11-23 14:21:26,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e82d900 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:21:26, skipping insertion in model container [2021-11-23 14:21:26,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:26" (2/3) ... [2021-11-23 14:21:26,817 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e82d900 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:21:26, skipping insertion in model container [2021-11-23 14:21:26,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:21:26" (3/3) ... [2021-11-23 14:21:26,818 INFO L111 eAbstractionObserver]: Analyzing ICFG sssc12.i [2021-11-23 14:21:26,824 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-23 14:21:26,824 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 14:21:26,824 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 14:21:26,824 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-23 14:21:26,860 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,861 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,861 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,861 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,862 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,862 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,862 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,862 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,862 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,863 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,863 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,863 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,863 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,863 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,863 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,864 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,864 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,864 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,865 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,865 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,865 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,866 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,866 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,866 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,866 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,867 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,867 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,867 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,867 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,868 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,868 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,869 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,869 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,869 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,869 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,870 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,870 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,870 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,870 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,870 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,870 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,871 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,871 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,871 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,873 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,873 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,874 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,874 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,874 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,874 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,876 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,876 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,876 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,876 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,876 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,877 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,877 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,877 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,877 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,877 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,878 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,879 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,884 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,885 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,885 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,885 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,885 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,886 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,886 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,887 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,888 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,888 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:26,894 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-23 14:21:26,952 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-23 14:21:26,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 [2021-11-23 14:21:26,959 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-23 14:21:26,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2021-11-23 14:21:27,028 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-11-23 14:21:27,037 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 14:21:27,038 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 14:21:27,176 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-23 14:21:27,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:21:27,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1330365036, now seen corresponding path program 1 times [2021-11-23 14:21:27,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:21:27,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797365821] [2021-11-23 14:21:27,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:21:27,193 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:21:27,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:21:27,476 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-23 14:21:27,483 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:21:27,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797365821] [2021-11-23 14:21:27,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797365821] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:21:27,485 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:21:27,485 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 14:21:27,487 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044334689] [2021-11-23 14:21:27,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:21:27,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 14:21:27,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:21:27,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 14:21:27,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 14:21:27,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:21:27,525 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:21:27,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:21:27,527 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:21:27,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:21:27,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 14:21:27,572 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-23 14:21:27,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:21:27,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1329057904, now seen corresponding path program 1 times [2021-11-23 14:21:27,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:21:27,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398875020] [2021-11-23 14:21:27,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:21:27,575 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:21:27,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:21:27,794 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:21:27,794 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:21:27,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398875020] [2021-11-23 14:21:27,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398875020] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:21:27,795 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:21:27,795 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 14:21:27,795 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52844230] [2021-11-23 14:21:27,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:21:27,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 14:21:27,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:21:27,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 14:21:27,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 14:21:27,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:21:27,798 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:21:27,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:21:27,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:21:27,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:21:27,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:21:27,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 14:21:27,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 14:21:27,912 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-23 14:21:27,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:21:27,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1087549676, now seen corresponding path program 1 times [2021-11-23 14:21:27,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:21:27,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548452781] [2021-11-23 14:21:27,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:21:27,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:21:27,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:21:28,150 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:21:28,150 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:21:28,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548452781] [2021-11-23 14:21:28,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548452781] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:21:28,152 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:21:28,152 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-23 14:21:28,152 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642402475] [2021-11-23 14:21:28,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:21:28,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 14:21:28,154 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:21:28,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 14:21:28,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-23 14:21:28,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:21:28,157 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:21:28,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:21:28,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:21:28,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-23 14:21:28,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:21:28,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:21:28,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 14:21:28,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-23 14:21:28,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 14:21:28,375 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-23 14:21:28,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:21:28,376 INFO L85 PathProgramCache]: Analyzing trace with hash 904808298, now seen corresponding path program 1 times [2021-11-23 14:21:28,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:21:28,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735356663] [2021-11-23 14:21:28,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:21:28,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:21:28,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 14:21:28,440 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 14:21:28,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 14:21:28,511 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 14:21:28,511 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-23 14:21:28,513 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 1 remaining) [2021-11-23 14:21:28,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 14:21:28,537 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-23 14:21:28,538 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (1/2) [2021-11-23 14:21:28,538 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-23 14:21:28,539 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2021-11-23 14:21:28,548 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,548 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,548 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,549 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,549 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,549 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,549 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,549 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,549 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,550 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,550 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,550 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,550 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,550 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,550 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,550 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,551 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,551 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,551 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,551 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,551 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,552 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,552 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,552 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,552 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,552 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,552 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,553 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,553 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,553 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,553 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,553 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,553 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,554 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,554 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,554 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,554 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,554 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,554 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,555 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,555 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,555 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,555 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,555 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,555 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,555 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,556 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,556 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,556 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,556 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,556 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,556 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,557 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,557 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,557 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,557 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,557 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,557 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,558 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,558 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,558 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,558 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,558 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,559 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,559 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,559 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,559 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,559 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,559 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,559 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,560 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,560 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,560 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,560 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,560 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,560 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,560 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,561 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,561 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,561 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,561 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,561 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,562 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,562 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,562 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,562 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,562 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,562 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,563 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,563 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,563 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,563 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,563 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,563 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,564 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,564 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,564 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,564 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,564 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,564 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,564 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,565 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,565 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,565 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,565 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,565 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,565 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,565 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,566 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,566 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,566 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,566 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,566 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,566 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,567 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,567 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,567 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,567 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,567 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,567 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,568 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,568 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,568 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,568 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,568 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,569 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,569 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,569 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,569 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,569 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,569 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,570 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,570 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,570 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,571 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,571 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,571 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,571 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~end~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,571 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,572 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,572 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,572 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,572 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~c~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,572 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:21:28,573 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-23 14:21:28,574 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-23 14:21:28,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 [2021-11-23 14:21:28,576 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-23 14:21:28,585 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thrThread2of2ForFork0 ======== [2021-11-23 14:21:28,586 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 14:21:28,586 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 14:21:28,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2021-11-23 14:21:28,689 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 14:21:28,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:21:28,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1833258129, now seen corresponding path program 1 times [2021-11-23 14:21:28,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:21:28,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807524825] [2021-11-23 14:21:28,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:21:28,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:21:28,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:21:28,726 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-23 14:21:28,727 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:21:28,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807524825] [2021-11-23 14:21:28,729 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807524825] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:21:28,730 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:21:28,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 14:21:28,730 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950628054] [2021-11-23 14:21:28,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:21:28,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 14:21:28,732 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:21:28,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 14:21:28,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 14:21:28,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:21:28,734 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:21:28,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 40.0) internal successors, (80), 2 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:21:28,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:21:28,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:21:28,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 14:21:28,756 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 14:21:28,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:21:28,756 INFO L85 PathProgramCache]: Analyzing trace with hash 793762433, now seen corresponding path program 1 times [2021-11-23 14:21:28,757 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:21:28,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108124523] [2021-11-23 14:21:28,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:21:28,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:21:28,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:21:28,908 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:21:28,909 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:21:28,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108124523] [2021-11-23 14:21:28,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108124523] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:21:28,909 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:21:28,909 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 14:21:28,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887017366] [2021-11-23 14:21:28,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:21:28,910 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 14:21:28,910 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:21:28,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 14:21:28,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 14:21:28,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:21:28,911 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:21:28,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:21:28,912 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:21:28,912 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:21:28,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:21:28,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 14:21:28,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 14:21:28,982 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 14:21:28,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:21:28,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1708479715, now seen corresponding path program 1 times [2021-11-23 14:21:28,982 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:21:28,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751551716] [2021-11-23 14:21:28,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:21:28,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:21:28,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:21:29,149 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:21:29,149 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:21:29,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751551716] [2021-11-23 14:21:29,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751551716] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:21:29,149 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:21:29,150 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-23 14:21:29,150 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809836292] [2021-11-23 14:21:29,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:21:29,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 14:21:29,151 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:21:29,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 14:21:29,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-23 14:21:29,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:21:29,152 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:21:29,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:21:29,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:21:29,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-23 14:21:29,152 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:21:29,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:21:29,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 14:21:29,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-23 14:21:29,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 14:21:29,356 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 14:21:29,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:21:29,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1648178079, now seen corresponding path program 1 times [2021-11-23 14:21:29,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:21:29,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774874365] [2021-11-23 14:21:29,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:21:29,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:21:29,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:21:29,438 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:21:29,438 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:21:29,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774874365] [2021-11-23 14:21:29,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774874365] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 14:21:29,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1795586741] [2021-11-23 14:21:29,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:21:29,439 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:21:29,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 [2021-11-23 14:21:29,491 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 14:21:29,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 14:21:29,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:21:29,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 14:21:29,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:21:29,923 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:21:29,923 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:21:30,163 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:21:30,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1795586741] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 14:21:30,164 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 14:21:30,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2021-11-23 14:21:30,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859075983] [2021-11-23 14:21:30,165 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 14:21:30,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-23 14:21:30,166 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:21:30,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-23 14:21:30,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-11-23 14:21:30,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:21:30,167 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:21:30,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 16.272727272727273) internal successors, (179), 11 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:21:30,168 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:21:30,168 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-23 14:21:30,168 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-23 14:21:30,168 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:21:30,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:21:30,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 14:21:30,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-23 14:21:30,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 14:21:30,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-23 14:21:30,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:21:30,531 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 14:21:30,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:21:30,532 INFO L85 PathProgramCache]: Analyzing trace with hash 85862909, now seen corresponding path program 1 times [2021-11-23 14:21:30,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:21:30,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540773155] [2021-11-23 14:21:30,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:21:30,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:21:30,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:21:30,746 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:21:30,746 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:21:30,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540773155] [2021-11-23 14:21:30,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540773155] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 14:21:30,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [875527495] [2021-11-23 14:21:30,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:21:30,747 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:21:30,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 [2021-11-23 14:21:30,748 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 14:21:30,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 14:21:30,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:21:30,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 14:21:30,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:21:31,191 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:21:31,191 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:21:31,522 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:21:31,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [875527495] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 14:21:31,523 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 14:21:31,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 21 [2021-11-23 14:21:31,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501015260] [2021-11-23 14:21:31,523 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 14:21:31,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-23 14:21:31,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:21:31,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-23 14:21:31,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=357, Unknown=0, NotChecked=0, Total=420 [2021-11-23 14:21:31,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:21:31,528 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:21:31,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 11.952380952380953) internal successors, (251), 21 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:21:31,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:21:31,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-23 14:21:31,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-23 14:21:31,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-23 14:21:31,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:21:32,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:21:32,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 14:21:32,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-23 14:21:32,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-23 14:21:32,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-23 14:21:32,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-23 14:21:32,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:21:32,615 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 14:21:32,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:21:32,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1481539193, now seen corresponding path program 1 times [2021-11-23 14:21:32,616 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:21:32,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561459035] [2021-11-23 14:21:32,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:21:32,616 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:21:32,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:21:32,807 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 15 proven. 38 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-23 14:21:32,807 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:21:32,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561459035] [2021-11-23 14:21:32,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561459035] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 14:21:32,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1930973172] [2021-11-23 14:21:32,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:21:32,808 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:21:32,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 [2021-11-23 14:21:32,809 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 14:21:32,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-23 14:21:32,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:21:32,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-23 14:21:32,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:21:33,407 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 5 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:21:33,407 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:21:33,971 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 5 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:21:33,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1930973172] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 14:21:33,972 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 14:21:33,972 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 27 [2021-11-23 14:21:33,972 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238340503] [2021-11-23 14:21:33,972 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 14:21:33,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-23 14:21:33,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:21:33,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-23 14:21:33,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=611, Unknown=0, NotChecked=0, Total=702 [2021-11-23 14:21:33,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:21:33,974 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:21:33,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 12.814814814814815) internal successors, (346), 27 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:21:33,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:21:33,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-23 14:21:33,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-23 14:21:33,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-23 14:21:33,976 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-11-23 14:21:33,976 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:21:35,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:21:35,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 14:21:35,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-23 14:21:35,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-23 14:21:35,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-11-23 14:21:35,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-11-23 14:21:35,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-23 14:21:35,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-23 14:21:35,559 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 14:21:35,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:21:35,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1209803619, now seen corresponding path program 2 times [2021-11-23 14:21:35,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:21:35,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918394430] [2021-11-23 14:21:35,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:21:35,560 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:21:35,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:21:35,744 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 84 proven. 71 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2021-11-23 14:21:35,745 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:21:35,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918394430] [2021-11-23 14:21:35,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918394430] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 14:21:35,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1455897853] [2021-11-23 14:21:35,745 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 14:21:35,745 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:21:35,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 [2021-11-23 14:21:35,746 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 14:21:35,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-23 14:21:35,848 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-23 14:21:35,848 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 14:21:35,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-23 14:21:35,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:21:36,715 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 5 proven. 228 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:21:36,715 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:21:37,717 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 5 proven. 228 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:21:37,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1455897853] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 14:21:37,718 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 14:21:37,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 15, 15] total 36 [2021-11-23 14:21:37,718 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943654915] [2021-11-23 14:21:37,718 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 14:21:37,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2021-11-23 14:21:37,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:21:37,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-11-23 14:21:37,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=1117, Unknown=0, NotChecked=0, Total=1260 [2021-11-23 14:21:37,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:21:37,723 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:21:37,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 12.61111111111111) internal successors, (454), 36 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:21:37,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:21:37,724 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-23 14:21:37,724 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-23 14:21:37,724 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-23 14:21:37,724 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-11-23 14:21:37,724 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-11-23 14:21:37,724 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:21:40,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:21:40,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 14:21:40,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-23 14:21:40,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-23 14:21:40,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-23 14:21:40,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-11-23 14:21:40,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-11-23 14:21:40,494 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-11-23 14:21:40,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-11-23 14:21:40,680 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 14:21:40,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:21:40,681 INFO L85 PathProgramCache]: Analyzing trace with hash 462458679, now seen corresponding path program 1 times [2021-11-23 14:21:40,681 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:21:40,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139490341] [2021-11-23 14:21:40,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:21:40,681 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:21:40,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:21:40,896 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 535 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-23 14:21:40,897 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:21:40,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139490341] [2021-11-23 14:21:40,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139490341] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:21:40,897 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:21:40,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-11-23 14:21:40,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348395914] [2021-11-23 14:21:40,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:21:40,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-23 14:21:40,901 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:21:40,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-23 14:21:40,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2021-11-23 14:21:40,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:21:40,903 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:21:40,904 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 15.142857142857142) internal successors, (212), 14 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:21:40,904 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:21:40,904 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-23 14:21:40,904 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-23 14:21:40,904 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-23 14:21:40,905 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-11-23 14:21:40,905 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2021-11-23 14:21:40,905 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2021-11-23 14:21:40,905 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:21:57,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:21:57,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 14:21:57,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-23 14:21:57,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-23 14:21:57,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-11-23 14:21:57,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2021-11-23 14:21:57,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 238 states. [2021-11-23 14:21:57,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-23 14:21:57,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-23 14:21:57,699 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 14:21:57,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:21:57,700 INFO L85 PathProgramCache]: Analyzing trace with hash -328566978, now seen corresponding path program 1 times [2021-11-23 14:21:57,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:21:57,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562866925] [2021-11-23 14:21:57,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:21:57,700 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:21:57,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:21:57,740 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-23 14:21:57,740 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:21:57,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562866925] [2021-11-23 14:21:57,740 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562866925] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:21:57,740 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:21:57,741 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 14:21:57,741 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376018783] [2021-11-23 14:21:57,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:21:57,741 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 14:21:57,742 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:21:57,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 14:21:57,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 14:21:57,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:21:57,743 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:21:57,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:21:57,743 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:21:57,743 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-23 14:21:57,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-23 14:21:57,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-23 14:21:57,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-11-23 14:21:57,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 135 states. [2021-11-23 14:21:57,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 238 states. [2021-11-23 14:21:57,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-11-23 14:21:57,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:11,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:11,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 14:22:11,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-23 14:22:11,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-23 14:22:11,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2021-11-23 14:22:11,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 243 states. [2021-11-23 14:22:11,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 398 states. [2021-11-23 14:22:11,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-23 14:22:11,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 14:22:11,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-23 14:22:11,687 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 14:22:11,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:22:11,687 INFO L85 PathProgramCache]: Analyzing trace with hash -456948933, now seen corresponding path program 1 times [2021-11-23 14:22:11,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:22:11,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460835693] [2021-11-23 14:22:11,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:22:11,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:22:11,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:22:11,717 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:22:11,718 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:22:11,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460835693] [2021-11-23 14:22:11,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460835693] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:22:11,718 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:22:11,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 14:22:11,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151089458] [2021-11-23 14:22:11,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:22:11,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 14:22:11,719 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:22:11,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 14:22:11,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 14:22:11,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:11,720 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:22:11,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:22:11,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:11,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-23 14:22:11,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-23 14:22:11,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-11-23 14:22:11,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2021-11-23 14:22:11,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 243 states. [2021-11-23 14:22:11,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 398 states. [2021-11-23 14:22:11,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-11-23 14:22:11,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-23 14:22:11,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:13,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:13,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 14:22:13,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-23 14:22:13,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-23 14:22:13,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2021-11-23 14:22:13,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 254 states. [2021-11-23 14:22:13,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 417 states. [2021-11-23 14:22:13,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-23 14:22:13,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 14:22:13,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:22:13,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-23 14:22:13,573 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 14:22:13,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:22:13,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1541752642, now seen corresponding path program 1 times [2021-11-23 14:22:13,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:22:13,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827105587] [2021-11-23 14:22:13,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:22:13,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:22:13,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:22:13,613 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2021-11-23 14:22:13,614 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:22:13,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827105587] [2021-11-23 14:22:13,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827105587] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:22:13,614 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:22:13,615 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 14:22:13,615 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929934261] [2021-11-23 14:22:13,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:22:13,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 14:22:13,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:22:13,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 14:22:13,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 14:22:13,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:13,617 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:22:13,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:22:13,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:13,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-23 14:22:13,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-23 14:22:13,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-23 14:22:13,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 109 states. [2021-11-23 14:22:13,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 254 states. [2021-11-23 14:22:13,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 417 states. [2021-11-23 14:22:13,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-11-23 14:22:13,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-23 14:22:13,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:22:13,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:16,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:16,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 14:22:16,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-23 14:22:16,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-23 14:22:16,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2021-11-23 14:22:16,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 270 states. [2021-11-23 14:22:16,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 441 states. [2021-11-23 14:22:16,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-23 14:22:16,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 14:22:16,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:22:16,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:22:16,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-23 14:22:16,251 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 14:22:16,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:22:16,252 INFO L85 PathProgramCache]: Analyzing trace with hash -2108930104, now seen corresponding path program 1 times [2021-11-23 14:22:16,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:22:16,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236153419] [2021-11-23 14:22:16,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:22:16,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:22:16,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:22:16,576 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2021-11-23 14:22:16,577 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:22:16,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236153419] [2021-11-23 14:22:16,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236153419] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 14:22:16,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2125513898] [2021-11-23 14:22:16,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:22:16,577 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:22:16,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 [2021-11-23 14:22:16,591 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 14:22:16,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-23 14:22:16,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:22:16,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 14:22:16,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:22:17,020 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2021-11-23 14:22:17,020 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:22:17,381 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2021-11-23 14:22:17,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2125513898] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 14:22:17,382 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 14:22:17,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2021-11-23 14:22:17,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457411035] [2021-11-23 14:22:17,382 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 14:22:17,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-23 14:22:17,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:22:17,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-23 14:22:17,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2021-11-23 14:22:17,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:17,384 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:22:17,385 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 12.125) internal successors, (194), 16 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:22:17,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:17,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-23 14:22:17,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-23 14:22:17,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-11-23 14:22:17,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 121 states. [2021-11-23 14:22:17,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 270 states. [2021-11-23 14:22:17,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 441 states. [2021-11-23 14:22:17,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-11-23 14:22:17,386 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-23 14:22:17,386 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:22:17,386 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:22:17,386 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:18,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:18,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 14:22:18,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-23 14:22:18,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-23 14:22:18,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2021-11-23 14:22:18,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 275 states. [2021-11-23 14:22:18,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 446 states. [2021-11-23 14:22:18,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-23 14:22:18,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 14:22:18,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:22:18,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:22:18,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-23 14:22:18,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-23 14:22:18,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-11-23 14:22:18,486 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 14:22:18,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:22:18,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1265368486, now seen corresponding path program 3 times [2021-11-23 14:22:18,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:22:18,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28771710] [2021-11-23 14:22:18,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:22:18,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:22:18,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:22:18,668 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 102 proven. 42 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2021-11-23 14:22:18,669 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:22:18,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28771710] [2021-11-23 14:22:18,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28771710] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 14:22:18,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1205631922] [2021-11-23 14:22:18,670 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-23 14:22:18,670 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:22:18,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 [2021-11-23 14:22:18,675 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 14:22:18,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-23 14:22:18,763 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-23 14:22:18,763 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 14:22:18,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-23 14:22:18,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:22:19,193 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 102 proven. 42 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2021-11-23 14:22:19,193 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:22:19,775 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 102 proven. 42 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2021-11-23 14:22:19,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1205631922] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 14:22:19,776 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 14:22:19,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21 [2021-11-23 14:22:19,777 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793101513] [2021-11-23 14:22:19,777 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 14:22:19,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-23 14:22:19,778 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:22:19,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-23 14:22:19,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=353, Unknown=0, NotChecked=0, Total=420 [2021-11-23 14:22:19,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:19,779 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:22:19,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 12.904761904761905) internal successors, (271), 21 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:22:19,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:19,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-23 14:22:19,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-23 14:22:19,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-11-23 14:22:19,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2021-11-23 14:22:19,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 275 states. [2021-11-23 14:22:19,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 446 states. [2021-11-23 14:22:19,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-11-23 14:22:19,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-23 14:22:19,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:22:19,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:22:19,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-11-23 14:22:19,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:20,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:20,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 14:22:20,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-23 14:22:20,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-23 14:22:20,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2021-11-23 14:22:20,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 279 states. [2021-11-23 14:22:20,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 458 states. [2021-11-23 14:22:20,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-23 14:22:20,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 14:22:20,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:22:20,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:22:20,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-23 14:22:20,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-23 14:22:20,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-23 14:22:21,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-11-23 14:22:21,070 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 14:22:21,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:22:21,070 INFO L85 PathProgramCache]: Analyzing trace with hash 748444708, now seen corresponding path program 2 times [2021-11-23 14:22:21,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:22:21,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938660831] [2021-11-23 14:22:21,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:22:21,071 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:22:21,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:22:21,202 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 144 proven. 112 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-11-23 14:22:21,203 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:22:21,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938660831] [2021-11-23 14:22:21,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938660831] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 14:22:21,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1281280714] [2021-11-23 14:22:21,204 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 14:22:21,204 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:22:21,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 [2021-11-23 14:22:21,205 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 14:22:21,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-23 14:22:21,305 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-23 14:22:21,305 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 14:22:21,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 14:22:21,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:22:21,629 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 144 proven. 112 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-11-23 14:22:21,629 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:22:21,968 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 144 proven. 112 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-11-23 14:22:21,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1281280714] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 14:22:21,969 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 14:22:21,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 14 [2021-11-23 14:22:21,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690480170] [2021-11-23 14:22:21,970 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 14:22:21,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-23 14:22:21,971 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:22:21,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-23 14:22:21,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2021-11-23 14:22:21,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:21,972 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:22:21,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 17.785714285714285) internal successors, (249), 14 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:22:21,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:21,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-23 14:22:21,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-23 14:22:21,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-11-23 14:22:21,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2021-11-23 14:22:21,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 279 states. [2021-11-23 14:22:21,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 458 states. [2021-11-23 14:22:21,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-11-23 14:22:21,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-23 14:22:21,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:22:21,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:22:21,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-11-23 14:22:21,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-11-23 14:22:21,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:22,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:22,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 14:22:22,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-23 14:22:22,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-23 14:22:22,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2021-11-23 14:22:22,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 279 states. [2021-11-23 14:22:22,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 458 states. [2021-11-23 14:22:22,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-23 14:22:22,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 14:22:22,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:22:22,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:22:22,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-23 14:22:22,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-23 14:22:22,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-23 14:22:22,196 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-23 14:22:22,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-11-23 14:22:22,377 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 14:22:22,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:22:22,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1335273878, now seen corresponding path program 4 times [2021-11-23 14:22:22,377 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:22:22,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463544002] [2021-11-23 14:22:22,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:22:22,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:22:22,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:22:22,619 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 90 proven. 318 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-23 14:22:22,620 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:22:22,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463544002] [2021-11-23 14:22:22,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463544002] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 14:22:22,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [703087640] [2021-11-23 14:22:22,620 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-23 14:22:22,620 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:22:22,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 [2021-11-23 14:22:22,622 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 14:22:22,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-23 14:22:22,728 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-23 14:22:22,728 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 14:22:22,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-23 14:22:22,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:22:23,566 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 90 proven. 318 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-23 14:22:23,566 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:22:24,499 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 90 proven. 318 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-23 14:22:24,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [703087640] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 14:22:24,500 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 14:22:24,500 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 29 [2021-11-23 14:22:24,500 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366301514] [2021-11-23 14:22:24,500 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 14:22:24,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-23 14:22:24,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:22:24,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-23 14:22:24,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=695, Unknown=0, NotChecked=0, Total=812 [2021-11-23 14:22:24,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:24,502 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:22:24,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 14.310344827586206) internal successors, (415), 29 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:22:24,502 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:24,503 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-23 14:22:24,503 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-23 14:22:24,503 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-11-23 14:22:24,503 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2021-11-23 14:22:24,503 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 279 states. [2021-11-23 14:22:24,503 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 458 states. [2021-11-23 14:22:24,503 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-11-23 14:22:24,503 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-23 14:22:24,503 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:22:24,503 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:22:24,503 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-11-23 14:22:24,503 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-11-23 14:22:24,503 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-23 14:22:24,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:25,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:25,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 14:22:25,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-23 14:22:25,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-23 14:22:25,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2021-11-23 14:22:25,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 279 states. [2021-11-23 14:22:25,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 458 states. [2021-11-23 14:22:25,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-23 14:22:25,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 14:22:25,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:22:25,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:22:25,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-23 14:22:25,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-23 14:22:25,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-23 14:22:25,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-23 14:22:25,371 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-23 14:22:25,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:22:25,551 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 14:22:25,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:22:25,552 INFO L85 PathProgramCache]: Analyzing trace with hash 130856810, now seen corresponding path program 1 times [2021-11-23 14:22:25,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:22:25,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682344573] [2021-11-23 14:22:25,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:22:25,552 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:22:25,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:22:25,816 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 0 proven. 495 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-23 14:22:25,816 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:22:25,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682344573] [2021-11-23 14:22:25,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682344573] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 14:22:25,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1125172541] [2021-11-23 14:22:25,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:22:25,816 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:22:25,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 [2021-11-23 14:22:25,819 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 14:22:25,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-23 14:22:25,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:22:25,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-23 14:22:25,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:22:26,725 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 0 proven. 495 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-23 14:22:26,725 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:22:27,707 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 0 proven. 495 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-23 14:22:27,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1125172541] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 14:22:27,708 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 14:22:27,708 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 35 [2021-11-23 14:22:27,709 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202816577] [2021-11-23 14:22:27,709 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 14:22:27,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2021-11-23 14:22:27,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:22:27,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-11-23 14:22:27,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=1022, Unknown=0, NotChecked=0, Total=1190 [2021-11-23 14:22:27,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:27,714 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:22:27,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 14.028571428571428) internal successors, (491), 35 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:22:27,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:27,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-23 14:22:27,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-23 14:22:27,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-11-23 14:22:27,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2021-11-23 14:22:27,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 279 states. [2021-11-23 14:22:27,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 458 states. [2021-11-23 14:22:27,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-11-23 14:22:27,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-23 14:22:27,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:22:27,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:22:27,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-11-23 14:22:27,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-11-23 14:22:27,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-23 14:22:27,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-11-23 14:22:27,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:38,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:38,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 14:22:38,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-23 14:22:38,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-23 14:22:38,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2021-11-23 14:22:38,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 288 states. [2021-11-23 14:22:38,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 475 states. [2021-11-23 14:22:38,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-23 14:22:38,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 14:22:38,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:22:38,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:22:38,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-23 14:22:38,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-23 14:22:38,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-23 14:22:38,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-11-23 14:22:38,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-11-23 14:22:38,879 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-23 14:22:39,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2021-11-23 14:22:39,071 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 14:22:39,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:22:39,072 INFO L85 PathProgramCache]: Analyzing trace with hash -412157921, now seen corresponding path program 2 times [2021-11-23 14:22:39,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:22:39,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034875919] [2021-11-23 14:22:39,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:22:39,073 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:22:39,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:22:39,334 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 0 proven. 312 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-23 14:22:39,335 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:22:39,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034875919] [2021-11-23 14:22:39,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034875919] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 14:22:39,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [257681764] [2021-11-23 14:22:39,335 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 14:22:39,335 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:22:39,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 [2021-11-23 14:22:39,337 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 14:22:39,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-23 14:22:39,427 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-23 14:22:39,427 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 14:22:39,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-23 14:22:39,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:22:39,997 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 0 proven. 312 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-23 14:22:39,997 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:22:40,748 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 0 proven. 312 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-23 14:22:40,749 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [257681764] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 14:22:40,749 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 14:22:40,749 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 15] total 32 [2021-11-23 14:22:40,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075268376] [2021-11-23 14:22:40,750 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 14:22:40,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-11-23 14:22:40,750 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:22:40,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-11-23 14:22:40,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=837, Unknown=0, NotChecked=0, Total=992 [2021-11-23 14:22:40,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:40,752 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:22:40,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 11.125) internal successors, (356), 32 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:22:40,752 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:40,752 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-23 14:22:40,752 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-23 14:22:40,752 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-11-23 14:22:40,752 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 131 states. [2021-11-23 14:22:40,752 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 288 states. [2021-11-23 14:22:40,752 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 475 states. [2021-11-23 14:22:40,752 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-11-23 14:22:40,752 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-23 14:22:40,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:22:40,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:22:40,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-11-23 14:22:40,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-11-23 14:22:40,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-11-23 14:22:40,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-11-23 14:22:40,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2021-11-23 14:22:40,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:48,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:48,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 14:22:48,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-23 14:22:48,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-23 14:22:48,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 141 states. [2021-11-23 14:22:48,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 302 states. [2021-11-23 14:22:48,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 497 states. [2021-11-23 14:22:48,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-23 14:22:48,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 14:22:48,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:22:48,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:22:48,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-23 14:22:48,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-11-23 14:22:48,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-23 14:22:48,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-11-23 14:22:48,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-11-23 14:22:48,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-11-23 14:22:48,506 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thrErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 14:22:48,528 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2021-11-23 14:22:48,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:22:48,711 INFO L732 BasicCegarLoop]: Path program histogram: [4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:22:48,711 INFO L308 ceAbstractionStarter]: Result for error location thrThread2of2ForFork0 was SAFE (1/3) [2021-11-23 14:22:48,713 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-23 14:22:48,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 [2021-11-23 14:22:48,714 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-23 14:22:48,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (14)] Waiting until timeout for monitored process [2021-11-23 14:22:48,716 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thrThread1of2ForFork0 ======== [2021-11-23 14:22:48,717 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 14:22:48,717 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 14:22:48,813 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 14:22:48,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:22:48,813 INFO L85 PathProgramCache]: Analyzing trace with hash 631366093, now seen corresponding path program 1 times [2021-11-23 14:22:48,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:22:48,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987495041] [2021-11-23 14:22:48,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:22:48,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:22:48,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:22:48,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:22:48,828 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:22:48,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987495041] [2021-11-23 14:22:48,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987495041] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:22:48,828 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:22:48,828 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 14:22:48,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112179328] [2021-11-23 14:22:48,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:22:48,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 14:22:48,829 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:22:48,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 14:22:48,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 14:22:48,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:48,830 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:22:48,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:22:48,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:48,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:48,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-23 14:22:48,838 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 14:22:48,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:22:48,839 INFO L85 PathProgramCache]: Analyzing trace with hash 274123420, now seen corresponding path program 1 times [2021-11-23 14:22:48,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:22:48,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220509859] [2021-11-23 14:22:48,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:22:48,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:22:48,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:22:48,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:22:48,907 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:22:48,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220509859] [2021-11-23 14:22:48,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220509859] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:22:48,908 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:22:48,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-23 14:22:48,908 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64637870] [2021-11-23 14:22:48,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:22:48,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 14:22:48,909 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:22:48,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 14:22:48,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-23 14:22:48,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:48,910 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:22:48,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:22:48,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:48,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:49,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:49,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-23 14:22:49,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-23 14:22:49,034 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 14:22:49,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:22:49,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1482836740, now seen corresponding path program 1 times [2021-11-23 14:22:49,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:22:49,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218477724] [2021-11-23 14:22:49,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:22:49,035 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:22:49,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:22:49,152 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:22:49,153 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:22:49,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218477724] [2021-11-23 14:22:49,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218477724] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 14:22:49,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [397738546] [2021-11-23 14:22:49,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:22:49,154 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:22:49,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 [2021-11-23 14:22:49,160 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 14:22:49,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-23 14:22:49,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:22:49,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 14:22:49,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:22:49,500 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:22:49,501 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:22:49,799 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:22:49,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [397738546] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 14:22:49,799 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 14:22:49,800 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2021-11-23 14:22:49,800 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478437359] [2021-11-23 14:22:49,800 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 14:22:49,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-23 14:22:49,800 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:22:49,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-23 14:22:49,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=382, Unknown=0, NotChecked=0, Total=462 [2021-11-23 14:22:49,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:49,801 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:22:49,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 9.545454545454545) internal successors, (210), 22 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:22:49,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:49,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-23 14:22:49,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:50,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:50,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-23 14:22:50,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-23 14:22:50,177 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-11-23 14:22:50,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-11-23 14:22:50,357 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 14:22:50,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:22:50,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1182730051, now seen corresponding path program 1 times [2021-11-23 14:22:50,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:22:50,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044994437] [2021-11-23 14:22:50,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:22:50,358 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:22:50,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:22:50,393 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-23 14:22:50,393 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:22:50,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044994437] [2021-11-23 14:22:50,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044994437] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:22:50,394 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:22:50,394 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 14:22:50,394 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343040933] [2021-11-23 14:22:50,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:22:50,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 14:22:50,395 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:22:50,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 14:22:50,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 14:22:50,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:50,396 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:22:50,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:22:50,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:50,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-23 14:22:50,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-11-23 14:22:50,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:50,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:50,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-23 14:22:50,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-23 14:22:50,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 14:22:50,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-23 14:22:50,444 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 14:22:50,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:22:50,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1550888033, now seen corresponding path program 1 times [2021-11-23 14:22:50,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:22:50,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751042971] [2021-11-23 14:22:50,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:22:50,445 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:22:50,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:22:50,526 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 40 proven. 16 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-23 14:22:50,526 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:22:50,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751042971] [2021-11-23 14:22:50,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751042971] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 14:22:50,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1043195651] [2021-11-23 14:22:50,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:22:50,527 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:22:50,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 [2021-11-23 14:22:50,531 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 14:22:50,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-11-23 14:22:50,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:22:50,612 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 14:22:50,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:22:51,168 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 45 proven. 11 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-23 14:22:51,168 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:22:51,450 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 45 proven. 11 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-23 14:22:51,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1043195651] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 14:22:51,451 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 14:22:51,451 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2021-11-23 14:22:51,451 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503306956] [2021-11-23 14:22:51,451 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 14:22:51,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-23 14:22:51,453 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:22:51,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-23 14:22:51,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2021-11-23 14:22:51,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:51,454 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:22:51,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 14.0625) internal successors, (225), 16 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:22:51,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:51,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-23 14:22:51,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-11-23 14:22:51,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-23 14:22:51,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:51,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:51,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-23 14:22:51,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-23 14:22:51,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 14:22:51,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-23 14:22:51,741 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-11-23 14:22:51,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-11-23 14:22:51,911 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 14:22:51,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:22:51,912 INFO L85 PathProgramCache]: Analyzing trace with hash -773833470, now seen corresponding path program 1 times [2021-11-23 14:22:51,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:22:51,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136048327] [2021-11-23 14:22:51,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:22:51,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:22:51,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:22:51,970 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 48 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-23 14:22:51,970 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:22:51,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136048327] [2021-11-23 14:22:51,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136048327] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 14:22:51,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [762721519] [2021-11-23 14:22:51,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:22:51,971 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:22:51,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 [2021-11-23 14:22:51,973 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 14:22:51,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-23 14:22:52,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:22:52,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 14:22:52,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:22:52,233 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 48 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-23 14:22:52,233 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:22:52,392 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 48 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-23 14:22:52,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [762721519] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 14:22:52,392 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 14:22:52,392 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2021-11-23 14:22:52,392 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465391790] [2021-11-23 14:22:52,392 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 14:22:52,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 14:22:52,393 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:22:52,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 14:22:52,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-23 14:22:52,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:52,394 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:22:52,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.375) internal successors, (163), 8 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:22:52,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:52,394 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-23 14:22:52,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-11-23 14:22:52,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-23 14:22:52,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-11-23 14:22:52,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:52,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:52,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-23 14:22:52,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-23 14:22:52,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 14:22:52,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-23 14:22:52,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 14:22:52,506 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-11-23 14:22:52,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-11-23 14:22:52,687 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 14:22:52,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:22:52,688 INFO L85 PathProgramCache]: Analyzing trace with hash 198772636, now seen corresponding path program 1 times [2021-11-23 14:22:52,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:22:52,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903017756] [2021-11-23 14:22:52,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:22:52,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:22:52,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:22:52,854 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:22:52,855 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:22:52,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903017756] [2021-11-23 14:22:52,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903017756] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 14:22:52,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1933454940] [2021-11-23 14:22:52,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:22:52,856 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:22:52,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 [2021-11-23 14:22:52,859 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 14:22:52,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-11-23 14:22:52,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:22:52,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-23 14:22:52,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:22:53,373 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 5 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:22:53,373 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:22:53,890 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:22:53,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1933454940] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 14:22:53,890 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 14:22:53,891 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 26 [2021-11-23 14:22:53,891 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202283510] [2021-11-23 14:22:53,891 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 14:22:53,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-11-23 14:22:53,891 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:22:53,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-11-23 14:22:53,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=554, Unknown=0, NotChecked=0, Total=650 [2021-11-23 14:22:53,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:53,892 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:22:53,893 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 11.23076923076923) internal successors, (292), 26 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:22:53,893 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:53,893 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-23 14:22:53,893 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-11-23 14:22:53,893 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-23 14:22:53,893 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-11-23 14:22:53,893 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-23 14:22:53,893 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:54,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:54,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-23 14:22:54,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-23 14:22:54,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 14:22:54,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-23 14:22:54,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 14:22:54,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-23 14:22:54,765 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2021-11-23 14:22:54,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-11-23 14:22:54,946 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 14:22:54,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:22:54,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1566621799, now seen corresponding path program 1 times [2021-11-23 14:22:54,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:22:54,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147766503] [2021-11-23 14:22:54,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:22:54,947 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:22:54,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:22:55,080 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 132 proven. 92 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-11-23 14:22:55,080 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:22:55,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147766503] [2021-11-23 14:22:55,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147766503] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 14:22:55,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [728859695] [2021-11-23 14:22:55,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:22:55,081 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:22:55,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 [2021-11-23 14:22:55,082 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 14:22:55,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-11-23 14:22:55,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:22:55,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-23 14:22:55,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:22:55,601 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 137 proven. 87 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-11-23 14:22:55,601 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:22:56,078 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 137 proven. 87 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-11-23 14:22:56,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [728859695] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 14:22:56,078 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 14:22:56,079 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21 [2021-11-23 14:22:56,079 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951343896] [2021-11-23 14:22:56,079 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 14:22:56,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-23 14:22:56,080 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:22:56,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-23 14:22:56,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=353, Unknown=0, NotChecked=0, Total=420 [2021-11-23 14:22:56,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:56,081 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:22:56,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 14.571428571428571) internal successors, (306), 21 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:22:56,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:56,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-23 14:22:56,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-11-23 14:22:56,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-23 14:22:56,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-11-23 14:22:56,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-23 14:22:56,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-11-23 14:22:56,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:56,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:56,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-23 14:22:56,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-23 14:22:56,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 14:22:56,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-23 14:22:56,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 14:22:56,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-23 14:22:56,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-23 14:22:56,556 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-11-23 14:22:56,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-11-23 14:22:56,736 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 14:22:56,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:22:56,737 INFO L85 PathProgramCache]: Analyzing trace with hash 242920627, now seen corresponding path program 2 times [2021-11-23 14:22:56,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:22:56,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714172169] [2021-11-23 14:22:56,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:22:56,738 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:22:56,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:22:56,834 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 147 proven. 148 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-23 14:22:56,835 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:22:56,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714172169] [2021-11-23 14:22:56,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714172169] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 14:22:56,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [132065582] [2021-11-23 14:22:56,836 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 14:22:56,836 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:22:56,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 [2021-11-23 14:22:56,847 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 14:22:56,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-11-23 14:22:56,943 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-23 14:22:56,943 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 14:22:56,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 14:22:56,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:22:57,211 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 147 proven. 148 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-23 14:22:57,212 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:22:57,503 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 147 proven. 148 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-23 14:22:57,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [132065582] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 14:22:57,503 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 14:22:57,504 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 14 [2021-11-23 14:22:57,504 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293169381] [2021-11-23 14:22:57,504 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 14:22:57,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-23 14:22:57,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:22:57,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-23 14:22:57,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2021-11-23 14:22:57,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:57,506 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:22:57,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 19.642857142857142) internal successors, (275), 14 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:22:57,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:57,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-23 14:22:57,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-11-23 14:22:57,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-23 14:22:57,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-11-23 14:22:57,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-23 14:22:57,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-11-23 14:22:57,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-11-23 14:22:57,508 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:57,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:57,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-23 14:22:57,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-23 14:22:57,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 14:22:57,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-23 14:22:57,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 14:22:57,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-23 14:22:57,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-23 14:22:57,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-23 14:22:57,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-11-23 14:22:57,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:22:57,915 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 14:22:57,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:22:57,915 INFO L85 PathProgramCache]: Analyzing trace with hash 465329440, now seen corresponding path program 2 times [2021-11-23 14:22:57,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:22:57,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132493634] [2021-11-23 14:22:57,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:22:57,916 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:22:57,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:22:58,184 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 0 proven. 383 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:22:58,184 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:22:58,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132493634] [2021-11-23 14:22:58,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132493634] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 14:22:58,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1206208787] [2021-11-23 14:22:58,184 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 14:22:58,185 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:22:58,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 [2021-11-23 14:22:58,185 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 14:22:58,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-11-23 14:22:58,262 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-23 14:22:58,262 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 14:22:58,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-23 14:22:58,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:22:58,990 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 5 proven. 378 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:22:58,990 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:22:59,958 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 0 proven. 383 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:22:59,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1206208787] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 14:22:59,959 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 14:22:59,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 34 [2021-11-23 14:22:59,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453294922] [2021-11-23 14:22:59,959 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 14:22:59,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-11-23 14:22:59,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:22:59,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-11-23 14:22:59,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=970, Unknown=0, NotChecked=0, Total=1122 [2021-11-23 14:22:59,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:59,961 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:22:59,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 12.823529411764707) internal successors, (436), 34 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:22:59,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:22:59,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-23 14:22:59,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-11-23 14:22:59,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-23 14:22:59,962 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-11-23 14:22:59,962 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-23 14:22:59,962 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-11-23 14:22:59,962 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-11-23 14:22:59,962 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-23 14:22:59,962 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:23:01,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:23:01,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-23 14:23:01,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-23 14:23:01,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 14:23:01,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-23 14:23:01,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 14:23:01,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-23 14:23:01,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-23 14:23:01,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-23 14:23:01,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-11-23 14:23:01,836 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2021-11-23 14:23:02,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2021-11-23 14:23:02,019 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 14:23:02,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:23:02,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1925947157, now seen corresponding path program 2 times [2021-11-23 14:23:02,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:23:02,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620336755] [2021-11-23 14:23:02,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:23:02,020 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:23:02,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:23:02,281 INFO L134 CoverageAnalysis]: Checked inductivity of 1223 backedges. 1084 proven. 139 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:23:02,281 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:23:02,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620336755] [2021-11-23 14:23:02,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620336755] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 14:23:02,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [534666458] [2021-11-23 14:23:02,282 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 14:23:02,282 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:23:02,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 [2021-11-23 14:23:02,283 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 14:23:02,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-11-23 14:23:02,386 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-23 14:23:02,386 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 14:23:02,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-23 14:23:02,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:23:02,825 INFO L134 CoverageAnalysis]: Checked inductivity of 1223 backedges. 1108 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2021-11-23 14:23:02,825 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 14:23:02,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [534666458] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:23:02,826 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 14:23:02,826 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [20] total 22 [2021-11-23 14:23:02,826 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538409021] [2021-11-23 14:23:02,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:23:02,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-23 14:23:02,827 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:23:02,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-23 14:23:02,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=298, Unknown=0, NotChecked=0, Total=462 [2021-11-23 14:23:02,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:23:02,828 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:23:02,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 17.357142857142858) internal successors, (243), 14 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:23:02,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:23:02,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-23 14:23:02,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-11-23 14:23:02,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-23 14:23:02,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-11-23 14:23:02,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-23 14:23:02,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-11-23 14:23:02,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-11-23 14:23:02,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-23 14:23:02,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2021-11-23 14:23:02,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:23:10,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:23:10,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-23 14:23:10,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-11-23 14:23:10,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 14:23:10,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-23 14:23:10,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 14:23:10,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-11-23 14:23:10,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-23 14:23:10,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-23 14:23:10,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2021-11-23 14:23:10,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-23 14:23:10,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2021-11-23 14:23:10,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2021-11-23 14:23:10,728 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 14:23:10,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:23:10,728 INFO L85 PathProgramCache]: Analyzing trace with hash 652338530, now seen corresponding path program 1 times [2021-11-23 14:23:10,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:23:10,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828277532] [2021-11-23 14:23:10,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:23:10,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:23:10,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:23:10,936 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 0 proven. 248 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:23:10,936 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:23:10,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828277532] [2021-11-23 14:23:10,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828277532] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 14:23:10,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [983435760] [2021-11-23 14:23:10,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:23:10,937 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:23:10,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 [2021-11-23 14:23:10,938 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 14:23:10,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b70ea87b-9fa9-40b4-bf8d-749bf478b91b/bin/ugemcutter-aZbSL5k0Dw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-11-23 14:23:11,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:23:11,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-23 14:23:11,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:23:11,519 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 0 proven. 248 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:23:11,519 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 14:23:12,115 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 0 proven. 248 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:23:12,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [983435760] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 14:23:12,115 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 14:23:12,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14, 14] total 30 [2021-11-23 14:23:12,116 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263975520] [2021-11-23 14:23:12,116 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 14:23:12,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-11-23 14:23:12,116 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:23:12,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-11-23 14:23:12,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=725, Unknown=0, NotChecked=0, Total=870 [2021-11-23 14:23:12,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:23:12,118 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-23 14:23:12,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 10.933333333333334) internal successors, (328), 30 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:23:12,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-23 14:23:12,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-23 14:23:12,119 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-11-23 14:23:12,119 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-23 14:23:12,119 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-11-23 14:23:12,119 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-23 14:23:12,119 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2021-11-23 14:23:12,119 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-11-23 14:23:12,119 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-11-23 14:23:12,120 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 103 states. [2021-11-23 14:23:12,120 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-11-23 14:23:12,120 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.